PURPOSE: A deodorization device using a medicinal liquid is provided to minimize consumed through self medicinal liquid production by an electrolysis device which is not the medicinal liquid supplying device and to increase deodorization efficiency. CONSTITUTION: A deodorization device (10) using a medicinal liquid comprises a preprocessing apparatus (100) to treat a granular material which is contained in the odorized air which is flowed into a duct (110)； a medicinal liquid storage tank in which the odorized air is sprayed inside through a pipe (210) which is installed in an upper inner part to flow in the odorized air which has been through the preprocessing apparatus； a first reactor chamber (300) which is formed in an upper part of the medicinal liquid storage tank, in which a first spray tube (310) where a medicinal liquid is supplied is installed in an upper inner part, in which a first media layer (320) is formed in the lower inner part, and which removes the odor as the medicinal liquid sprayed from the first spray tube and the odorized air sprayed from the pipe are reacted.； a second reactor chamber (400) which is formed in an upper part of the first reactor chamber, in which a second spraying tube (410) in which the medicinal liquid is supplied is installed in the upper inner part, in which a second media layer (420) is formed in the lower inner part, and which removes odor as the medicinal liquid sprayed from the second spray tube and the odorized air remained after reaction in the first reactor chamber； and an electrolysis device (500) which is formed inside or outside of the medicinal liquid storage tank and which generates the medicinal liquid applying electronic power to water. [Reference numerals] (AA) Discharge deodorized air； (BB) Supply odor air； (CC) Supply medicinal liquid； (DD) Water supply； (EE) Drainage본 발명은 악취를 포함하고 있는 물질 중 입자상 물질 등을 미리 제거할 수 있는 전처리장치를 약액저장탱크의 유입관 앞에 설치하고, 약액저장탱크 내부에 악취와 약액 간의 기-액 접촉효율을 높이기 위해 수중분사노즐을 형성시키고, 제 1반응챔버 및 제 2반응
